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* Increase efficiency of sign_extend_inreg by using subregisters for ↵Christopher Lamb2007-08-101-2/+2
| | | | | | truncation. As the README suggests sign_extend_subreg is selected to (sext(trunc)). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41010 91177308-0d34-0410-b5e6-96231b3b80d8
* Change the x86 assembly output to use tab characters to separate theDan Gohman2007-07-311-3/+3
| | | | | | | | | | mnemonics from their operands instead of single spaces. This makes the assembly output a little more consistent with various other compilers (f.e. GCC), and slightly easier to read. Also, update the regression tests accordingly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40648 91177308-0d34-0410-b5e6-96231b3b80d8
* It's not necessary to do rounding for alloca operations when the requestedDan Gohman2007-07-181-0/+13
alignment is equal to the stack alignment. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40004 91177308-0d34-0410-b5e6-96231b3b80d8